CAJ | 학술논문

以高产小麦宁麦8号和宁麦9号为研究对象，对两材料整个衰老过程中旗叶脂肪酸含量的变化进行了研究．结果表明：实验中两材料旗叶脂肪酸中14：0、16：0、18：1和18：2的含量呈现上升趋势；而16：1和18：3的含量则呈现下降趋势．脂肪酸不饱和指数也呈下降态势，其中18：3的变化对脂肪酸不饱和指数影响最大．宁麦9号较宁麦8号在不同脂肪酸变化上比较缓慢，表明宁麦9号膜结构在整个旗叶衰老期间相对稳定，这可能是宁麦9号高产抗早衰的基础之一．脂肪酸不饱和指数和16：1含量可以作为育种中抗早衰的指标．
이고산소맥저맥8호화저맥9호위연구대상，대량재료정개쇠로과정중기협지방산함량적변화진행료연구．결과표명：실험중량재료기협지방산중14：0、16：0、18：1화18：2적함량정현상승추세；이16：1화18：3적함량칙정현하강추세．지방산불포화지수야정하강태세，기중18：3적변화대지방산불포화지수영향최대．저맥9호교저맥8호재불동지방산변화상비교완만，표명저맥9호막결구재정개기협쇠로기간상대은정，저가능시저맥9호고산항조쇠적기출지일．지방산불포화지수화16：1함량가이작위육충중항조쇠적지표．
The changes of fatty acid composition of flag leaf were investigated in two newly-developed high-yieldwheat （Tritic-um aesticum L. ） varieties, Ningmai8 and Ningmai9, with a view to interpreting both the changes of fatty acid composition of flag leaf senescence and the variety differences. The results showed that during flag leaves senescence, there was a rise in fatty acid content in 14： 0, 16： 0,18： 1,18：2 and a fall in fatty acid content in 16： 1,18： 3. IUFA decreased mainly because of the decrease in fatty acid content in18： 3. The change of fatty acids in NM9 was less than that in NM8 and the membrane structure of NM9 was stable during flag leaves senescence; this was one of the bases for high yield and anti-senescence. IUFA and fatty acid content in 16：1 can be the parameters of anti- senescence on breeding.